/*
 * Copyright 2012 Marsrutai.lt
 * 
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 * 
 *   http://www.apache.org/licenses/LICENSE-2.0
 * 
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
package lt.marsrutai.mobile.android.task;

import java.util.ArrayList;
import java.util.List;

import lt.marsrutai.mobile.android.AppContext;
import lt.marsrutai.mobile.android.activity.intent.TaskIntentHolder;
import lt.marsrutai.mobile.android.exception.DataAccessException;
import lt.marsrutai.mobile.android.model.VehiclePosition;
import android.content.Intent;

/**
 * Background task which fetches current vehicle positions.
 * 
 * @author Justas
 */
public class GetVehiclePositionsTask extends NotifyingAsyncTask<GetVehiclePositionsTask.Criteria, Void, List<VehiclePosition>> {
    
    public static final int RESULT_NOT_RESOLVED = 10;
    public static final String BROADCAST_ACTION = "lt.marsrutai.mobile.android.task.GetVehiclePositionsTask";

    protected List<VehiclePosition> doInBackground(Criteria... params) {
        List<VehiclePosition> result = new ArrayList<VehiclePosition>();
        
        for (Criteria param : params) {
            try {
                result.addAll(AppContext.getDataService().getVehiclePositions(param.getScopeFolder(), param.getTransportId(), param.getScheduleName()));
            }
            catch (DataAccessException e) {
                setResultStatus(RESULT_NOT_RESOLVED);
            }
        }

        return result;
    }
    
    @Override
    protected Intent getResultIntent(List<VehiclePosition> result) {
        TaskIntentHolder intentHolder = new TaskIntentHolder(super.getResultIntent(result));
        intentHolder.setResult(result, VehiclePosition.class);
        return intentHolder.getIntent();
    }

    @Override
    protected String getBroadcastAction() {
        return BROADCAST_ACTION;
    }

    public static class Criteria {

        private String scopeFolder;
        private String transportId;
        private String scheduleName;

        public Criteria(String scopeFolder, String transportId, String scheduleName) {
            this.scopeFolder = scopeFolder;
            this.transportId = transportId;
            this.scheduleName = scheduleName;
        }

        public String getScopeFolder() {
            return scopeFolder;
        }

        public void setScopeFolder(String scopeFolder) {
            this.scopeFolder = scopeFolder;
        }

        public String getTransportId() {
            return transportId;
        }

        public void setTransportId(String transportId) {
            this.transportId = transportId;
        }

        public String getScheduleName() {
            return scheduleName;
        }

        public void setScheduleName(String scheduleName) {
            this.scheduleName = scheduleName;
        }

    }

}
